|
Re: '75 sbc
The 400 came with the car as .030 with Dart Pro 1 200 cc heads, 6" rods, a Comp Cams XR276HR-10, and the Victor Jr. The wrong fuel pump pushrod was installed (no bronze tip) and it ate the lobe.
When I had it rebuilt, I reused as much as I could to save money. Otherwise, I'd have at least switched to a dual plane intake. It went to .040 with the same heads, intake, etc. The Jones cam is mild and produces about 15" vacuum at idle. It's good enough for me in front of a Richmond 5 speed with a 3.26 first gear and 2.73 posi. I can cruise all day at 75 mph.
272/276 @.006"
224/228 @.050"
.340"/.340" Lobe Lift
.510"/.510" Valve Lift w/1.5 rockers
112 LSA
|