nickmckinney

I have been playing with this 38CC TFS head and wondering if anyone is actually planning on using them outside of a NMRA type car. With the valve 0.050" closer to the piston than the 44CC head it either has to use a smaller cam duration, less cam advance, or needs a different intake notch than the OEM heads. While it has slightly more PTV clearance than a PI head it appears to have less than a NPI head.