i just bought a used crawford v5 plenum. i installed it today but when i started it up it began stalling. Does anyone know what screws i need to get for the middle of the plenum. The stock plenum had 6 screws in the middle. i do not have screws in these holes. and the 2 middle holes in the crawford plenum are too long for the stock screws to fit. suggestions anyone?

 

You have a vacuum leak with those holes not sealed. Why didn't you received the bolts with the plenum? Try calling crawford to see if they can send you some new bolts.

 

the seller didnt supply them. i kind of need those bolts tomorrow or else the car is stuck in my driveway.

 

Well, you can try the hardware store. Take the original bolts, and find longer ones. There are nylon washers that go with each bolt as well. If I remember correctly the bolts are staggered lengths.

 

ya def a vac leak I though some had those holes welded up so that it could be smoothed out

 

if you just put the top on bro and you didnt plug the 4 open hole you def got a vac leak. Your best bet is to take the top off. Take one of the 2 bolts you have in the center of the intake to ace hardware. Find an allen plug the same diameter and threadpitch and threadseal them into the lower intake from the top. Until then it will run but wont hold idle. good luck bro if you need anything else pm me mike

 

got it running. went to the hardware store and got some bolts and thread lock thanks everyone.