PsyOps
Well-Known Member
I agree completely about port alignment. I think we're both saying the same thing. In theory, if the difference between the OP's intake and an unmolested Indy intake is .220 as measured, using washers or material on the 4 corners to lift the OP's intake from his heads should line up the ports as they were originally intended. What you rightly pointed out is, we have no visual assessment of how the ports line up with or without shims and hogging out the bolt holes won't do a thing to correct any misalignment of the ports as we suspect there is. Now, measuring the port alignment both as is and with a .220 shim on the corners will solve what we don't yet know. Bore scope, dykem, or ???There is no point in shimming the intake 0.220" to make the mounting holes line up......if the port openings do not line up.
What is important is the port alignment & that is the FIRST thing to check. Everything follows from that....