suggestions for a 289

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pennywise64stng

New Member

Jan 27, 2004

4

0

0

ontario,ca

Mar 11, 2004

#1

• Mar 11, 2004

• #1

i have a 64.5 mustang coupe. it has a 289. i was wondering what i could do to boost the hp. i wanted to buy a 351w and fix that up, but its probably a waste of $. i dont need it to be all super fast, but i would like to have more power. also trying not to spend a bunch of money. but i will if its worth it. any suggestions would be appreciated.

 

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Ian70mustang

New Member

Mar 6, 2004

18

0

0

San Diego

Mar 11, 2004

#2

• Mar 11, 2004

• #2

Is it a 2 or 4 bbl.? the best mod you can do if it is a 2 bbl. is to let it breathe alittle. Next after that is headers and a cam. If you did all three you'd be in pretty good shape, and not out too much money.

 

12sec67

Active Member

Oct 6, 2003

1,301

1

36

San Diego, Ca

Mar 11, 2004

#3

• Mar 11, 2004

• #3

you couls get rid of you 2.73 gears and go to 3.55's - it doesn't add hp but it is a good improvement and will be faster.

 

LMan

Founding Member

Aug 10, 2002

1,246

0

0

Mom's basement

Mar 11, 2004

#4

• Mar 11, 2004

• #4

Suggestions:

* ~600 CFM vac secondary carb
* 4bbl dual-plane intake (F4B or equivalent)
* change rear gears to 3.25 - 3.55
* shift kit in C4, if auto-equipped
* dual exhaust, 2.25" pipe with H or X-pipe
* Tri-Y headers

These will make a significant difference, and wont break the bank. When you get bored with this level of performance, you can consider a cam, heads, and your budget

 

HistoricMustang

Active Member

Apr 11, 2003

2,359

0

46

Confederate States of America

Mar 11, 2004

#5

• Mar 11, 2004

• #5

Lman. Good suggestions and all are low cost.

HistoricMustang
www.historicmustang.com