I have a Sanger Ski Hydro lake boat that I am in the process of building an engine for out of parts I had and trying to keep the money resonable and reletivly dependable. I need a bit of advise on a few things. I know little about boats or Blown gas, The specs are:
Gen VI 502 plus .030
8.5 to 1
Zero deck with 17046 Fel pro gaskets
Iron merlin 320s w 2.250 intakes with a good valve job and some port work
Crane solid roller Intake .737 lift, 274 duration @.050, Exhaust .726 lift, 284 duration @.050, 114 center, advanced 5
Mert short manifold
Old Terry Kell tube core intercooler
Hampton big rotor 6-71 (No teflon)
2 950 CFM Pro Systems carbs
I would like to run Pump gas (midwest, No E10), Might consider mixing some av gas if it will help?
I need to know :
A blower overdrive and a boost number that is safe but not overly so?
How do you recommend dealing with intercooler water temp on the Dyno?
A Starting point on timing?
A plug recomendation (14mm, .460 reach, tapered seat)?
I had Cirello do me a Super mag 3 and I have a PSI rev limiter on it, But it looks like most of the blown gas folks running GN boats run MSDs so am I making a mistake here?
I really appriciate all the info that that you all are willing to provide. It has been a big help so far