Read these spark plugs...

[Volphin]

Re: Read these spark plugs...

My heads are WAY better then vortecs... I have Profiler 220's aluminum heads on it right now... I put a xm262 cam in it.

Will the stock thunderbolt IV ignition be enough you think?

Just quickly glanced at your setup and saw the older style intake bolt pattern. YES. Those heads are a good choice and flow very well. Bet that lightened her up a bit! :laugh:

TB4 puts out more than enough for your app. Not much to be gained by throwing another system on. It's built like a tank.

 

[Volphin]

Re: Read these spark plugs...

Jealous on the headers... I'm going with Bassett on my 383 build this winter! Or maybe I'll stick with Hi-Tek. They are nicely made.
If you got a deal, do share with the group.

 

[chrisf695]

Re: Read these spark plugs...

There is a hard line connected from the carb to the gauge line... its an adapter.


But your sure right on the weight savings... with heads , manifolds and risers... looking around 150-175lbs in the azz weight savings.

I picked up the bassetts for 500... from a local guy in my area. Couldnt pass it up. Im running aluminum glm manifolds and hardin marine risers which Ill be selling in the winter. Its been a fun boat... just wish I went with a different cam... I know im losing a ton with this xm262. But I guess its better to go smaller then have too large of cam...

 

[slothman]

Re: Read these spark plugs...

could be oil blowing by the piston rings, or maybe bad valve seals. If it was running rich all of the plugs would be dark and black like that.

 

[Volphin]

Re: Read these spark plugs...

There is a hard line connected from the carb to the gauge line... its an adapter.
View attachment 209063

But your sure right on the weight savings... with heads , manifolds and risers... looking around 150-175lbs in the azz weight savings.

I picked up the bassetts for 500... from a local guy in my area. Couldnt pass it up. Im running aluminum glm manifolds and hardin marine risers which Ill be selling in the winter. Its been a fun boat... just wish I went with a different cam... I know im losing a ton with this xm262. But I guess its better to go smaller then have too large of cam...

I went with the XM270 and 1.6 roller tips. The response is awesome. Safe for reversion too.

 

[achris]

Re: Read these spark plugs...

...Will the stock thunderbolt IV ignition be enough you think?

Easily.... The curve is good to about 5500rpm. You don't want any more than that or the drive won't take it...

Chris....