stang8689

I got a 306 with AFR 165s 1.7 rr and gt-40 tubular intake w/ported lower I was looking at the XE270HR-12 but I contacted comp cams and they recommened the XE276HR-12. I have a work truck so the car doesnt get driven too much but reliability is number 1. Would the 276 be too big for my set-up? I will be checking ptv but do you think I will have any with the 276? How much more power do you and I will be getting the nm think the 276 would make over the 270

http://www.summitracing.com/parts/CCA-35-324-8/

http://www.summitracing.com/parts/CCA-35-328-8/

FivePointOhh

276 has the longer exhaust valve duration, your engine would be much more efficient. plus the lift is a bit more. if i did it over again i'd get the 276 over the 270 which is what i have now.

stang8689

So the 276 wouldnt be too big for my combo I was worried bout the low rpm power but it doesnt take much gas to get to 2200 anyway

mjr46

I have a custom cam in my 306 set up with 218ish duration and well over .560 lift and it has low , mid and upper power

AdderMk2

id definitly run the 276 in your car. I had it in my 347 and it was too little... so i dont for a second think its too much for your car

XPBaller

In a setup like that, it'll scream. go with it

mjr46

I HAD A XE 282 in a 306 that ran low 12's

stang8689

how much more power do you think the 276 would make over the 270 how much power do you think my set up would make at the flywheel

AdderMk2

impossible to say, too many variables.... you should know that

stang8689

yeah I know lol well what springs would be better the 986's or 987's

http://www.summitracing.com/parts/CCA-986-16/

http://www.summitracing.com/parts/CCA-987-16/