5ohfox

would it be alright to put a 70mm Holly throttle body on a BBK or summit 70mm EGR spacer?
as soon as i put my motor back together, and took the tape off the butterfly valve on the Throttle body, a huge chuck came off with the tape. so now i need to get a new throttle body and EGR.. any ideas of some of the best combos out there. from people who actually have the p;roduct? thanks

93stangz

what year is your car?

5ohfox

i have a 89 Fox 5 speed GT

2 kwik

yes..but a 70mm is a lil big

5ohfox

well im goin to pull off both the stock Throttle body and EGR. and when the parts come..i plan to port match the two for the bigger setup. 70mm is ok..so i heard. but 75mm would kill the TR.

ooticamitica

from what ive heard 70mm is ok for a stock motor but no more.

gspfunk

What H/C/I setup are you running? Unless you have high flowing heads or boost, you probably will lose some throttle response w/ that 70mm. I'm running ported E7's, E cam, and the Street Heat intake w/ a 65mm TB....she runs guud (good)

88BlueGT

I ran a 70mm on my bolt on 88 and I had no problems with it.

5ohfox

i just have the basic bolt ons(longtube headers, costom 2 1/2 hpipe and flowmasters, ac eliminator, eletric fan, intake. underdrive pullys. thats about it...
but the chunk is only missing on the edge..will it be ok

2 kwik

you may have no problems but your sure not going to get any hp gains on his basic stock engine..it's like looking at a funnel