vintage chromoly

iTrader: (3)

Any head is "good head"!

That said, We don't ever mention the words "pro comp" on this board.

Call Bob and have him spec you an AFR head with hard annodizing and the proper valvetrain for what you decide to do.

vintage chromoly

iTrader: (3)

Truth be told, a merc thunderbolt ignition would be fine.
If you want more flexibility in tuning your advance and want a rev limiter, the Daytona sensors CD box is the way to go.

Maybe guys with more experience will step up as I'm just a hobbyist.

Unlimited jd

iTrader: (5)

There it is^^^^

abones

not to get off topic but as far as MSD I have a short story to tell.... I had such a bad time with their boxes and soft touch limiters that I boxed it all up sent it all back with a note inside to please call me. I did get a return call asking me what needed to be done I told them to please keep them because they don't seem to work for me, he said they could fix them for a small charge, I told him no and to please just keep your junk, A. because in good conscience I could never sell them to anybody and B. I don't hate anyone bad enough to give them to!! never heard from them again. Understand this was just the electrical boxes not the distributors, I was using merc dist and still do.

dereknkathy

you also have to buy and rig an MSD setup to replace the thunderbolt system you now have that is just as good and more durable...

SB

iTrader: (1)

Hey Whipper,

Let us hit the basics that we may be assuming but wrong on.

What boat and outdrive do you have ?

And, will you be able to use high octane every single time you get gas ? Every single time ? Every single time ? Yes I asked to twice to make sure you take this question seriously. Or could you possibly get stuck, even just once, getting 87 octane ?
Be truthful to yourself here.

dereknkathy

pro comp or any other aftermarket head outflows 188-990-088. they (proconmp) have a rep for crappy castings and definatly are assembled with valves and springs, etc that don't belong in a marine engine. brodix-adfr-dart best alum heads. cost a lot more. merlin iron outflow stock GM's. decide your displacement-RPM range then start doing homework on the port size, cam, compression ratio and exhaust that is optimal for that setup. the 088 ports are really too big for the 365 mag engine they are delivered on. a smaller chambered large oval head would have been a better choice. too bad GM never did an oval with bigger valves. of course that is what most of the aftermarket heads are. aluminum upgrades of heavily ported 049 ovals. that being said i just bought a set of 088's. might get another.

whiprmz

I have a 94 Baja outlaw. Bravo 1. I use the highest octane at the pump.

whiprmz

Well. If there no good. Why did you buy 088 heads.

MILD THUNDER

iTrader: (3)

The 088 heads will not flow better than the pro comp. However, I would not recommend the pro comp heads due to their casting quality .