I'm about to drive from Texas to Maryland in my '84 T/A it has the original 305 which was rebuilt by the previous owner who I assume used a stock rebuild kit, topped off with a edelbrock performer intake and 600cfm carb. Is there anything i can do for the trip tuning wise to get better gas milage?

 

basic maintenance...oil change, plugs, make sure the air cleaner isn't filthy. And don't use the AC.

 

dont put your foot into it. like gradually get up to speed and stuff.. do the above stuff mentioned also.

 

You've got the same setup as me stock 305 with a T5 trans. I've got a holley SA 670 carb dominator intake and x-stream air filter and I get about 30-35 MPG on the hi way. depending on driving conditions. Can't get much better than that with these cars.

 

30-35mpg i dont even get that in my saturn...and nowhere near that in my t/a

 

how do you do it? lol i have an LG4 and barely gun it and i get around 10 mpg city and 15ish highway... I have the LG4 with the 600 Holley on it..

 

I don't know how I get it. LOL. I've got a holley 670 Street Avenger, that actually helps a bit as apposed to a stocker. I've done a lot of maintenance to the engine too. Getting the timing just right....I honestly just don't know how I've got that much. When I first clocked it I was amazed that I was getting such awesome gas milage. If I knew I'd share the secret. My auto v6 bird only got 12mpg lol.

 

i think i might invest in a holley before the trip then

 

The street avenger is around $360 depending on manual or electric choke. It's a really good carb. Summit says it delivers 10% better fuel econemy. It must. I think those carbs are amazing.