Guys i've been dreading asking since i'm probably not the first but I did spend hours searching the site for similar threads to no real luck. I'm just trying to find which headers will not hit the spark plugs(especially #3). And whether angled or straight plugs make a difference. My 82 ta has straight plugs, a 305 and no interference with 1 5/8 primaries. The 383 is complete except heads so as I choose heads, i would rather choose the angle and headers that will not be as frustrating as you all have experienced. Even pointing me to the appropriate thread would be a great help. Maybe im searching the wrong terms. New set of 1036 afr 195's with 75 cc chamber on ebay right now about $1150. Thanks for the shortcut!

 

I bought a nice set of angle plug headers of of ebay but i have to run the shorty header plugs that accel makes. I like the setup but there are some plugs you have to take out from under the car and it is a MAJOR help if you buy this custom spark plug socket since clearances are so close! If you go with angle plug you might find it better to buy a set off under the headr plug wires from msd> Thats what i did and i really like it! Saves from burnt wires as well!

 

Unless you have a piston that is more than a flat top i WOULD NOT use a 75cc chamber head! You would have extremely low compression!

 

Thanks for the start. I saw how a bunch of you run shorty plugs but i read often that's not enough. I never saw headers designated as for angle heads even on summitt. Maybe i misunderstood your answer. Also generally i thought 65 cc heads would push cr to around 10.5:1, so 75cc would be above 9. Less than ideal but would leave room for a power adder just in case i hit the lottery. Only reason i considered them was because originaly listed for $1000. For that price id drop a point in c.r. what im asking is who has experience with a larger primary (above 1 3/4) , header brand and angle of plug without interference? Appreciate your combos

 

Thats gonna be tricky to come up with! I hope i helped

 

Nope not tricky! Dyno Don makes his headers to clear straight and angle plug heads. He did it on AFR's and stock heads. His headers are 1 3/4in primaries shortys.

 

i have the afr 1095 angled plugs. and im running hawks ( stainless works )long tube headers. 1,2,3,4,5,7, are butter. easy to get to . 6, and 8 can be gotten with a box end wrench.