1972 Blazer need help!!!!!!!!!!

[moodyholler]

I have a 72 cst blazer 350 goodwrench motor ,th350 and 3.73 rear gears 4x4. It is a gas guzzler!!!!!!!!!!!!! Purchased edelbrock performer intake, and carb, and Hei. Someone has told me timing gears are not straight up in these motors. They are retarded,is that true? Will straight up gears help?I also wish to change to a new venture 4500 5 speed as I know this will help a lot. Does any one know of an adapter for the transfer case? I also need a set of original front buckets. I have good brackets but a NEWER set of IROC seats are mounted. A final question, the fiberglass top and tail gate are junk on my blazer. Can they be repaired or do I just order a soft top for it? Thanks in advance for any help. Moodyholler. PS I am also parting out two 68 short beds, 1chevy and one gmc, 70 blazer most all parts gone except for fair tub, and a 72 lwb. All trucks are 6 cyl. 3 speedds.