[Spridgets] New Engine

[Robert E. Shlafer]

Assuming you're talking about the APT
SPVP-3, go with the larger 1.4 intake valves.

This cam about stock below 3...really "comes in" strongly @ 3k+ and will go to 7+ if rest of engine up to it.

I ran 11.0-1 with my plain VP3, cast iron head, 1.4 Rimflows when using a mix of
CAM2 and prem. unleaded., 30 degrees of
total advance, CHT-11 big bore header/2"
exhaust.

Went like a raped ape. Excellent hi-perf. street cam.

Cap'n. Bob      '60 :{)