mac gt40p long tubes- how much does the plug clearance improve?

[red89yj]

Does anyone have pictures of what the headers look like in relation to the plugs on the gt40p specific long tubes?

I have mac shortys now and my plugs are arcing with 90 degree boots; my exhaust is rotting away underneath the car so Ill be replacing that soon and want to go with long tubes. I need to see if the headers will improve the clearance over my non-p specific shortys.

Thanks in advance!

 

[red89yj]

okay- dont necessarily need pictures but if you can tell me how they are different from regular headers in regard to plug clearance, that would be great too!

 

[birel21y]

As i know, the primary tubes come out further, giving more clearance to the spark plugs. I heard BBK long tubes works well, im going through this with my new engine right now. I bought a set of hedman long tubes that im going to make work. only one primary tube interferes.

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