when I accelerate i hear rat tat tat tat tat tat tat.. the faster I accel.. the louder/faster it gets.. is that a lifter or an injector?.. or something else? if I take my foot off the gas even when rolling its gone.. the second i'm on the gas.. its back.. I thought it was a lifter but now I wonder if it could be an injector...

 

That would be an exhaust leak, probably where the manifold meets the head.

Try tightening the bolts.

 

Yeah definitely a exhaust manifold leak, check your header bolts.

 

yeah i got one of those that sounds like a stuttering man try to speak with all "t" words.......but i need a new header gasket and one bolt that i broke off.....

 

Ahh, don't we just love exhaust leaks.
Just fixed mine from the back header bolt falling out.

 

its like the old rule of motors says....if you own a sbc and have headers...you have exhaust leaks