Part # R-199‑A Duration:(INT/EXH) 256 & 252/260° Lift (mm):(INT/EXH)9.55 & 9.55/9.50 Suggested Use:High torque camshafts to suit near stock engines. Ideal in 36 mm restrictor classes.
Part # R-199‑B Duration:(INT/EXH) 264 & 260/260° Lift (mm): 10.70 & 10.20/10.20 Suggested Use: Race and Rally camshafts. High lift, low duration design for great throttle response. Must have shimless buckets and aftermarket ECU.
Part #R-199‑C Duration:(INT/EXH) 272 & 268/268° Lift (mm): 11.30 & 10.50/10.50 Suggested Use: High lift 272 degree racing camshafts. Requires cylinder head modification to fit. Suits well built competition motors. Good on E85 fuel. Must have shimless buckets and aftermarket ECU.
Part #R-199‑D Duration:(INT/EXH) 282 & 278/278° Lift (mm): 11.50 & 11.00/11.00 Suggested Use: High Lift 282 degree duration racing cams. These cams require cylinder head modification to fit. Suits well built motors with larger intake manifolds. Good on E85 fuel. Must have shimless buckets and aftermarket ECU.
Part #R-199‑E Duration:(INT/EXH)292 & 288/294 Lift (mm): 11.00 & 11.00/11.00 Suggested Use: 290 degree camshafts to suit high boost, high rpm Drag racing engines. Must be run with fixed timing, not suitable in variable situations.