Edelbrock Intake install question??

[krazedstang]

Hey guys i picked up a used Edelbrock Performer 5.0 for my 88 Vert, it didn't come with any hardware or anything ive got everything except the bolt that goes in the middle thru the upper plenum, any ideas on what size and length this is??
Thanks

 

[Bills89GT]

I am pretty sure they are 5/16" course thread. not totally sure on the length. you should be able to measure that though. I actually used studs with course thread going into the lower and fine thread on the top going into the upper. I'd guess 1.5" or 2" for the total length but you should just measure