3tc or 22r

[mfrye44]

MIN. WEIGHT 2000 lbs 1 LBS PER CC WHICH IS BETTER HALF AND QUARTER MILE TRACKS THANKS

[dave41]

what can you do to engine.

[mfrye44]

Weight must be marked legible on each side of hood or fender
4 cylinder OEM block with stock manifold (intake)
Stock crank, max. rod lengths 5.7 (some run lighter cranks)
Ignition stock style electronic or points no MDS allowed (some have msd)
No roller tappets, wet sump with internal oil pump
Valves—steel only (no hollow valves)
Box stock head only—OEM—no porting or polishing
No aluminum heads on Ford engines