When i ordered the new engine , i had the cast iron gt 40 heads to go along with it , well when we took out the old one , we found that there isnt a port holle for the smog pump line to connect up to on the back side of the heads. now my delema is . the enigine place cant find thoses types of heads that have the port hole on the back side for smog. so do i keep the heads on with the new engine or go back to stock, or block off the smog pump and just say screw it for now. but backing up , will this cause a check engine lite ??? give me some thoughts , now mind ya i live in california sooooo we all know the smog sucks out here, lol i can have them trade the new gt 40 heads out for new stock ones. but thats gonna cut back on some power. tell me what you would do. thanks :comando: