Opps.timing set

Reply Subscribe

Thread Tools

Search this Thread

Aug 9, 2008 | 03:41 PM

460me

Thread Starter

More Turbo

Joined: Nov 2003

Posts: 747

Likes: 26

Opps.timing set

I put this cam:
CraneCams

in with a later(72-8?) timing set.Now after about 3500 miles it starting to load up at idle and foul the plugs.No other problems.
ported 79 heads , Edel-performer intake /600 cfm headers-2.5 exhaust
The only thing I didn't replace is the distributor . This truck is a 79 F250 460-c6 Trailer Special.

Any help here?
Thanks

Aug 9, 2008 | 04:48 PM

Bear 45/70

Post Fiend

Joined: Mar 2004

Posts: 6,056

Likes: 8

From: Union, Washington

Get a 1971 and earlier timing set and get rid of the 4° retarded cam timing to help throttle response and horsepower.

Aug 11, 2008 | 05:07 PM

mcdonaldm

Elder User

Joined: Jun 2004

Posts: 800

Likes: 6

From: Edmonton, Alberta Canada

also get rid of that 600cfm carb. with those mods and cam, you need at least a 750cfm carb for that engine to breathe. the 600cfm is great carb for a 302 or a 351, but not a 460. you will notice a huge difference by swapping out that carb for something bigger.

rgds
Mike

Aug 11, 2008 | 06:01 PM

Bear 45/70

Post Fiend

Joined: Mar 2004

Posts: 6,056

Likes: 8

From: Union, Washington

Quote:

Originally Posted by mcdonaldm

What cam? He says nothing about a cam. So you are wrong about the 750 carb. You are also wrong about the 600 being only good for small blocks. You are an overcarburator, very bad for street, mileage and towing. The 600 is great for a stock and/or tow rig. I would replace the stock 600 Holley 4180 emissions carb with a non-emissions Holly 600 if you haven't already. I did just that and with a personally twicked Holley List 1850, 600CFM vacuum secondary carb, my mileage was up close to 1.5 mpg and towing ability increase 2 fold.

Aug 11, 2008 | 09:12 PM

460me

Thread Starter

More Turbo

Joined: Nov 2003

Posts: 747

Likes: 26

Read it again,
This cam:

CraneCams

I been having to retard the timing to get it to start.But it will only retard so much

600 is fine for this set up

Aug 11, 2008 | 09:22 PM

Bear 45/70

Post Fiend

Joined: Mar 2004

Posts: 6,056

Likes: 8

From: Union, Washington

Quote:

Originally Posted by 460me

Read it again,
This cam:

CraneCams

I been having to retard the timing to get it to start.But it will only retard so much

600 is fine for this set up

Missed that, but a 750 is way to much for a 5000 rpm rev limit. A 650 would be better. For a street truck with any towing in it's future the 600 would still be a better choice as it will improve fuel economy and low end throttle response. Just how often would this engine ever see max revs?

Aug 11, 2008 | 09:29 PM

460me

Thread Starter

More Turbo

Joined: Nov 2003

Posts: 747

Likes: 26

Anyways.got new plugs,distributor and a 70 timing set.Time to get busy.

Quote:

Originally Posted by Bear 45/70

Just how often would this engine ever see max revs?

Never,maybe 4 -4500 just for funzie

Top 10 Fords at 2026 Carlisle Ford Nationals

Joe Kucinski

3 Best / 3 Worst Parts of Modern Ford Ownership

Brett Foote

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

Pouria Savadkouei

Every 2026 Ford Engine Explained

Brett Foote

10 Ugly Ford Trucks That We Still Kinda Love

Joe Kucinski

10 Things Every Truck Owner NEEDS (2026 Edition)

Michael S. Palmer

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Verdad Gallardo

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Joe Kucinski

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Brett Foote

Top 10 Ford Truck Tragedies

Joe Kucinski

Aug 17, 2008 | 10:24 AM

460me

Thread Starter

More Turbo

Joined: Nov 2003

Posts: 747

Likes: 26

I put it all back together and all I can say is WOW.What a big difference,I sure that the 30 year old dizzy had something to do with the way it was running.