I have a 99 7.4 mag/mpi and thinking of building the top end and adding a procharger.
Ive heard that the comp is 8.5:1 on this motor with stout internals.
Rather than go out and buy a new engine Im thinking of adding the listed...please let me know what you think...
edelbrock marine heads....here (http://store.summitracing.com/defaul...=egnsearch.asp)
comp cam and new roller assembly...here (http://www.compcams.com/Technical/Se...umber=11-232-3)
Ill add some emi thunder headers, msd ignition for the spark, send the ecu to az speed and marine for recalibration, and add a intercooled procharger. 5-7 psi not sure which....
thinking about 650hp?