Abandoned, Love reading your posts. I have a 81 bronco with the 300 in it. Im thinking of changing over to the off, dp intake with 4bbl carb. Just wondering if you would mind giving some pointers.suggestions on the process. Im new to this type of thing and could use all the help I can get. Thanks

Hey abandoned I have been reading a lot of usefuf info with which you have helped in the forum. It is an open forum so i could read without registering but now that i m rebuilding my ford 300 i have some questions which i have already posted. But watching your supermotors pictures i saw this http://www.supermotors.net/getfile/8...110927_005.jpg what is it ??

So I have found the EFI intake manifold with TB, fuel rail, injectors, harness, air box w/ hoses, distributor, and computer, what else do I need and is it simply gonna be buy a gasket pull my exh man replace gasket and bolt up both of them, and plug up harness and comp, or???

I am just now getting around to putting on my Summit carb to see if I can pass the emissions tests. That being said I noticed the conversation between you and F250 concerning the jet size that should be used. The stock jets are 67 on the Summit carb which I think are to big. Would I be better off rolling with the setup that we discussed previously, or should I look at going with the size 49-52 jets that F250 is looking at?

Thanks

I haven't gotten the throttle shafts repaired because I am moving into a city that is going to require an emissions test and I think that the Summit Carb will give me a better chance to do that. I am not going to get rid of the carter, I have my eye on another 300 project that whenever I have the time and funds to build it will go on it when it is repaired. I still have not put in a 3.25 rear yet, because I have not had the time to do so yet, so I still have the stock 2.75 unit with the SROD. Would it help to go to a 27 squirter because of this? Thanks for the help.

Josh

The link to the summit carb Summit Racing SUM-M08600VS - Summit Racing Street & Strip® Carburetors - Overview - SummitRacing.com.

Hey AB,

I have a question about carb tuning. I have a 1980 F100 that I have converted over to a four barrel setup that is similar to yours, except that I am running a 485 cfm carter wcfb carb and Clifford manifold with headers that I picked up in a barn and rebuilt. It worked fine for the first year and even returned good mileage, 20 mpg, but now it has developed a massive vacuum leak around the throttle shaft and the mileage has dropped off to 16. I have just purchased a summit racing carb, the mv8600 which runs about 600 cfm. It is based off of the old autolite 4100 series so it has annular discharge which I think will work well on my 300 six. That being said the summit carb uses holley parts and I am looking for some advice on which jets, cams, and squirters to use so I can get close to the right tune on my vehicle and work from there. If you need more information let me know.

Thanks,
Josh

Hey there AB,
Been folowing several threads on here...one in particular about carb tuning that you posted. I know you get tons of questions all the time. It's pretty in depth man...my compliments. i have a wedge spacer with the ports on either side for under my carb...picked it up off flea-bay lol. i don't plan on running this thing on the track, so i'm not too worried about a few degrees of camber to my carb mount...but i do want heat there (or under my DP mani i should say) you mentioned your brother fabbed one up for ya for your project. I'm in southeast alabama stationed here for the army. there's ZERO reputable shops around here that i would trust fabbing anything for my trucks. i'm very particular lol. Who can i contact to get a plate made up? i know i want the fittings in the plate to be welded up...don't want any chance of leakage. Already have an assortment of lines, fittings and appropriate gaskets. Just need the doggone plate lol! Any help man?

Thanks, Blake

hey man you are now an official member of the idaho chapter! lol.. thanks for joining man

AbandonedBronco,

Hello, I'm in the processes of rebuilding my engine. It's a 1981 F100 with, of course, the inline six. I plan on running an Edelbrock 500, Offenhauser DP, a mild camshaft, bored .030 over, and the dual exhaust manifolds from an EFI truck. My questions involve keeping the emissions equipment on the truck. I've tried to read up on how to plumb the AIR pump and the EGR, but it all gets lost on me. Do you have an pictures or diagrams of how it would look? The engine is at the machine shop, but I have the carbeurtor, intake, EGR (from a Foxbody Mustang), and exhaust.

I also purchased one of those coolant heating plates. Where would I get the coolant lines from? Those two running to the heater core? I hope you can get back to me.

Thanks.

hey man did you get my pm about the chapter? sorry man