Thread: Advice on combo

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It sounds fine as it is a street car....you might be leaving a few hp on the table with the smaller exaust....but not enuff to worry about on a street rod.

You could always come off those headers with a 3 inch pipe to help some...not sure if they make 1 3/4 inch or 1 7/8 inch shorties or not....if it runs fine and you do not run at the track I would not worry about it.

If anything that tunnel ram is leaving more low rpm torque and hp on the table than those headers...unless you are running a huge stall converter or run it up to 7 or 8 thousand rpm all the time.

If you have a 4500 rpm stall and spend alot of time in the higher revs ,then yes the exaust is holding you back some.

Judging from the picture, that engine is completely unsuitable for your purpose. I suggest you ship it to me for further analysis....

I had a tunnel ram on a street rod ten years or so ago, and I can tell you that when I switched over to a single 4 bbl carb, I was amazed at how much snappier the throttle response was. But that is the trade-off for the bling factor a polished tunnel ram will give you. Yes, you would probably gain some hp by going to Sanderson's 1 3/4 inch shorty headers, 3 inch exhaust and straight-through mufflers like Dynomax Ultraflows. But IMO, since this is a street car, the difference would not justify the price. Nice engine bay, by the way. Keep the stroker. There is no substitute for cubic inches.