Core charge of $350 is charged up front and will be reimbursed when we receive the core 243 heads back.
CNC ported, Dual 660 Springs, Titanium Retainers, and Performance Valve Job.
INTAKELift. Cfm.100 65.200 145.300 223.400. 261.500. 291.600. 302.650 306ExhaustLift. Cfm.100. 55.200. 105.300. 145.400. 176.500 205.600 220.650 227