F1A pulley help

[96whitesvt]

Just bought a F1A and was wondering who has had experience with these. Also wonder what size pulley for 15-17 pounds. It's the 8 rib style.

 

[Dr X]

Assuming a redline RPM of 7000, headers, etc... about a 4.50 pulley. RPM and modifications are good to know.

 

[96whitesvt]

Stock, heads, block, cams. Forged Pistons/rods, stock intake, return fuel system, longtubes,id1000s. On e85.