i need the stock cam specs for my 85 firebird has a 305 engine with a 5 speed transmission.....no trans am just the basic firebird.....my buddy is in need of a working 700r4 too if any one can get at me with that....

 

TPI? 4bbl std, or 4bbl HO? All used different cams.

 

4brrl standard.....

 

The LG4 cam specs are impossibly tiny. 178/194 duration at .050", .350/.385" lift, IDK the LSA. Why not get something slightly better? You can do a little better without hurting anything. Wouldn't even need any tuning or any parts changes, beyond new lifters, a new timing chain, and a cam change gasket set.

 

yea thats wat im tryin to do...get a bigger cam installed without changin my valvesprings.....i have roller tip rockers new lifters and 7.900" pushrods w/ guides.....jus need a cam

 

springs are a wear item. All you need to change them is a $20 tool you can get at your local NAPA. springs are $26, plus a small s&h charge, and you can do the valve seals while you're at it for another $16 or less.
For springs, try www.competitionproducts.com, part # 98111.
for a cam, I'd use a Summit K-1101, with or without new springs.