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305 upgrade cam, heads, base, etc... ??? Ok, 91 305 TPI.... I got some nice parts, was considering doing a 383 upgrade, but kept seeing more $$$ for that... my 305 has 150k, but in good shape, get new timing chain, etc... This way I can put most of these parts to good use and give my 305 a bit more pep :) My mechanic said he would change cam and heads for $550... I got some parts I can sell to pay for that... Install List: Cam 260 XFI Comp Cams Trick Flow 175cc 23 heads The cam is .5+ lift and the heads can handle .6... I have 2 intakes... A new Edelbrock TPI (in the box) and a GM one that was ported and extrude honed. Probably sell the Edelbrock... AS&M Runners Ported Plenum 24 lbs injectors should do ? Timing Chain New Hydraulic Lifters 1.6 Rockers Any other parts I should need / replace (water pump was recently done)... Have EBL P4, so can be tuned... Any thoughts about this? Do's or Don'ts ?? Thanks, Rafael |
Re: 305 upgrade cam, heads, base, etc... ??? If you are looking for injectors, I saw this today: https://www.thirdgen.org/forums/engi...bosch-3-a.html They're not 24 lbs injectors, but IMO I think 24's are a bit much for a 305. |
Re: 305 upgrade cam, heads, base, etc... ???
Originally Posted by blacksunshine'91
(Post 6266615)
If you are looking for injectors, I saw this today: https://www.thirdgen.org/forums/engi...bosch-3-a.html They're not 24 lbs injectors, but IMO I think 24's are a bit much for a 305. |
Re: 305 upgrade cam, heads, base, etc... ??? Run the 268 xfi lol |
Re: 305 upgrade cam, heads, base, etc... ??? Ok Orr89RocZ, you aren't getting off that easy 😉 Why the 268 over the 260? |
Re: 305 upgrade cam, heads, base, etc... ??? I like more duration. 260 is more stock in duration with a very aggressive lobe. It would also run well but sound very tame imo. The 268 would help pull more power up top and sound abit more like a cam. Just my opinion |
Re: 305 upgrade cam, heads, base, etc... ??? I will be the one to say it. You will be disappointed. The smaller bore of the 305 shrouds the intake valve and limits the airflow. As far as building a SBC, you have a good combo. What you are doing will require a custom PROM to run correctly. More than just a few changes. You will probably need to go through 3 or 4 edits to get it close. My :2cents: because it is a 305 with 150,000 on it is to wait until you can afford the 383. |
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