Vintage Mustang Forums - View Single Post - Looking for 20+ More HP
View Single Post
post #61 of (permalink) Old 05-10-2019, 09:29 PM
Senior Member
MrFlash's Avatar
Join Date: Apr 2018
Location: JAX
Posts: 600
I think 20 hp can be gained just by tuning.
Start with the carb.
I know it seems too big but maybe the secondaries can be adjusted to open later. Finding the optimal fuel air ratio will help. So a good AFR gauge will be a big help.
Get the distributor tuned.
Try different carb spacers.
Try a set of 1.7 rocker arms.

You can also try changing the camshaft timing with an adjustable timing set. I think it would respond well to being a few degrees retarded. But might also hurt the overall peak rpm.

I don’t think the cam is a horrible choice. Very similar profile to what I’m using although mine has more duration and lift on the exhaust side. Which is generally preferred for a SBF.
The OP could try only getting 1.7 rockers for the exhaust only. This would also increase the duration and lift of the exhaust valves.

1970 Mustang coupe
MrFlash is offline  
For the best viewing experience please update your browser to Google Chrome