IMHO modern multi-port EFI can't be beat.

I still have a thing for carbs & points & whatnot but the world evolves and things get better. We don't crank a little handle on a wall-mounted wooden box and talk to an operator to place a call anymore.......

 

Some of the new stuff with mass flo not speed density is awesome. But I also know their are still issues. On the carbs they have evolved also. The engine masters challenge has proven this. But the guys tinkering with these things have lots of tools acessable to them. Add a laptop and a few other extra tools and you have a reliable piece of equipment. I make a living fixing electronic issues on engines. Its a guarantee the electronics will fail! Some of the engine I work on are hundreds of thousands of dollars and one electronic issue with a 10 dollar part and your done. Scary thought to me! I work in the energy industry natural gas engines and they are getting more technical to meet tough emmission issues that are on us. Scary and very expensive and most people don't even know what it takes to make these things happen.

 

Intake flows, trick flow powerport 190 heads .100 4v 66cfm, trick flow 68cfm. .200 4v 143cfm, trick 140cfm. .300 4v 208.4, trick 202 cfm .400 4v 259cfm, trick 248cfm. .500 4v 299cfm, trick 286cfm. .600 4v 327cfm, trick 299cfm. Exhaust flows powerport 190. .100 4v 56cfm, trick 55cfm. .200 4v 101cfm, trick 111cfm. .300 4v 142, trick 151 cfm. .400 4v 171cfm, trick 187 cfm. .500 4v 182cfm, trick 217 cfm. .600 4v 195 cfm, trick 232 cfm. Intakes not really a big deal. exhaust the trick flow starts pulling away at .400 cfm. If i install a exhaust port from MPg heads will help pick it up some but not much. the other big difference is the cost I have involved. I have around $1300 invested into heads total. A modern combustion chamber would be nice. But old iron didn't have the advantage of todays technology and lessons learned.

 

yes we are evolving but some things I see we are not evolving especially in trucks. Scariest thing about a new vehicle is dealership. The more i run diesels the more I like my gassers. diesel big money and huge costs to maintain. this is part of the reason to build to this old iron. keeping old iron alive one ford at a time!! time to get some sleep.

 

trick flow powerport heads about $2100.00 roller cam I have invested about $1300.00 old iron.

 

was checkin into trick flows and Chi heads. The factory heads compete with many bands out their on intakes. But the exhaust flows are down but not by much. my head have been worked some and will do the job I need of this engine and then some. I'm pleased with the basic work done to the factory heads. The only thing is the combustion chamber designs are awesome of the new heads compared to the old designs. This open chamber should do OK. Some thought into cam design to help compensate for combustion chamber issues and several other things figured into this engine. working with several very smart guys to get the best results. MPGheads and Lloyd creek CFM head porter and Some with Tim Meyer on componet selection Lube system. My machinist Dan at top end putting up with my requests for this build. Dan knows how I am when it comes my specs, picky! Basic work to heads and a lot went into the the air gap intake. really like the air gap intake! Hopeing to get some cooling effect to help keep combustion chamber temps down. will be a dual air inlet system outside of engine compartment to help this process in summer time. winter not really a issue. just writing down my thoughts on project at this time. Working in New mexico at this time and making some bank$$$. paying for toys!! catch you guys later.

 

I like the AFD SP4VS heads, they flow real nice and have a nice chamber as well. My iron 4V's have alot of work done to em', port, polish, bowls reconfigured, milled, etc.... they work good if you got stroke, but with the stock 351 rod I only got power up high, nothing downtown. With all the new alloy stuff with small ports and etc.. you can cook bacon throughout the rpm band

I just put a fresh set of 4V's in the FTE classifieds for sale, gettin some scratch together to buy the alloys!

 

I thought I saw somewhere Edelbrock was making the Cleveland heads too ?

 

will check out. Another thing is the header sizing. what headers are you running. long or short 1.750 or bigger/smaller?? just needing some input to help me made a better decision. was looking at some 1.625" tubes but long to help on towing 2500 to 3000rpm range. what carb you running. will spend some money on high end carb. learned some things over the years on making torque with certain carbs. Not all carbs are created equal I know for sure!! catch you later.

 

was told decent but don't get to excited. modern combustion chamber but the flow OK. but can do better with some of the other brands out their. So if you have the money go CHI or AFD air flow developement and will do better.

 

Im running a long tube header, 1 7/8

 

I know header sizing can be tricky. Depending on where you want it to perform at. I have a set of 1.625 long tube 30" headers to try first. Will make a flange change first from 1.750 transition down to 1.625. dont want any restriction coming off head. want the tube to come out straight and figure out some transition to 1.625 tube diameter. thinking outside my head again and don't really have anybody's brain to pick from for this application. catch you guys later. engines coming together and will have some more photos and hopefully a dyno later down the road.

 

anyone had much of a go here? They are pretty pricy but I'm sure some put a loy of money into their heads and it may be not too bad. The only thing would be that it throws all the development and prior knowledge out the window. Starting over again to find whats works best would be a pain in the....
Aluminum Cylinder Heads Exhaust Manifolds Engine Blocks

 

Had a bit of a look on the net. These guys didn't have much of a rep a couple of years back. Anything changed?

 

Maybe getting a little smarter? Looks cool and hope things are going their way. watched the video on the camaro and many question! Did they change the combustion chamber cc and get more compression to such a big jump would be my first question. cool stuff either way.