spark plug heat range
I ran SB in dirt track racing and the most would only like 34-36* of timing any more u have way too much octane which is costing you HP.You should run the same timing all the time it will keep you from fouling your plugs out.On your cam what is the dur@ .050 and the lobe separation and what was it degreed at?Did you cc the heads,pistons in the cylinder,head gasket etc.or are you just guesstimating the comp.?With 100 octane fuel you should run that at the track and be fine cause with 111 you will probably go faster with more timing cause it's to much octane with the compression.Also you have way to much carb.
When I ran my 425W5 motor in my 69 Dart(3110lbs) I ran S/S Springs MP drag shocks for a M/T cause I ran a T-brake and Comp Eng 3 way adj front shocks with 6* of pinion angle it ran 9.70's with 1.31-1.33 60fts.
On the Mustang it has QA1 tubular K-member and lower control arms and double adj upper and lower control arms in stock location in the back.I have QA1 10 way adj struts and double adj Afco shocks with coilover springs in the back.Motor is in with motor plate and mid plate and had to make headers to route them the way I wanted and also cause they are 2in primary and 30 inches long.
I ran SB in dirt track racing and the most would only like 34-36* of timing any more u have way too much octane which is costing you HP.You should run the same timing all the time it will keep you from fouling your plugs out.On your cam what is the dur@ .050 and the lobe separation and what was it degreed at?Did you cc the heads,pistons in the cylinder,head gasket etc.or are you just guesstimating the comp.?With 100 octane fuel you should run that at the track and be fine cause with 111 you will probably go faster with more timing cause it's to much octane with the compression.Also you have way to much carb.
When I ran my 425W5 motor in my 69 Dart(3110lbs) I ran S/S Springs MP drag shocks for a M/T cause I ran a T-brake and Comp Eng 3 way adj front shocks with 6* of pinion angle it ran 9.70's with 1.31-1.33 60fts.
On the Mustang it has QA1 tubular K-member and lower control arms and double adj upper and lower control arms in stock location in the back.I have QA1 10 way adj struts and double adj Afco shocks with coilover springs in the back.Motor is in with motor plate and mid plate and had to make headers to route them the way I wanted and also cause they are 2in primary and 30 inches long.
